Use the following options to display IP Multicast over Fabric Connect within the GRT information to confirm proper configuration.
show isis spbm ip-multicast-route [all]
show isis spbm ip-multicast-route [detail]
show isis spbm ip-multicast-route [group {A.B.C.D}] [source {A.B.C.D}][source-beb WORD<0–255>]
show isis spb-mcast-summary [count][host-name WORD<0–255>][lspid <xxxx.xxxx.xxxx.xx-xx>]